21226023763 has 8 divisors (see below), whose sum is σ = 24259352832. Its totient is φ = 18192954696.

The previous prime is 21226023677. The next prime is 21226023809. The reversal of 21226023763 is 36732062212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21226023763 - 2²⁹ = 20689152851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21226023463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163506 + ... + 263032.

It is an arithmetic number, because the mean of its divisors is an integer number (3032419104).

Almost surely, 2^21226023763 is an apocalyptic number.

21226023763 is a deficient number, since it is larger than the sum of its proper divisors (3033329069).

21226023763 is an equidigital number, since it uses as much as digits as its factorization.

21226023763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130001.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 21226023763 its reverse (36732062212), we get a palindrome (57958085975).

The spelling of 21226023763 in words is "twenty-one billion, two hundred twenty-six million, twenty-three thousand, seven hundred sixty-three".